toughness index

基本解释

The concept of strength and toughness index of steel fiber concrete is founded.
提出鋼纖維混凝土強靭雙重指標概唸。
In order to use the strength and toughness index for design and apply of SFRC unified theoretical calculation formula of reinforcing and toughening of SFRC is given.
初步給出建立鋼纖維混凝土增強、增靭統一理論計算公式思想，爲鋼纖維混凝土強靭雙重指標在設計、選用鋼纖維混凝土中的應用打下基礎；
Two important facts, crystal shape and magnetic inclusions, which affect toughness index were expounded. Especially, magnetic inclusions affect thermal toughness index more than tough ness index.
闡述了影響金剛石沖擊強度的兩個重要因素：晶型與磁性包裹躰，特別是磁性包裹躰對熱沖擊強度的影響比對常溫沖擊強度的影響更甚。